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#!/usr/bin/env bash
#
# This file detects the C/C++ compiler and exports it to the CC/CXX environment variables
#
if [[ "$#" -lt 3 ]]; then
echo "Usage..."
echo "init-compiler.sh <script directory> <Architecture> <compiler> <compiler major version> <compiler minor version>"
echo "Specify the script directory."
echo "Specify the target architecture."
echo "Specify the name of compiler (clang or gcc)."
echo "Specify the major version of compiler."
echo "Specify the minor version of compiler."
exit 1
fi
nativescriptroot="$1"
build_arch="$2"
compiler="$3"
cxxCompiler="$compiler++"
majorVersion="$4"
minorVersion="$5"
. "$nativescriptroot"/../pipeline-logging-functions.sh
# clear the existing CC and CXX from environment
CC=
CXX=
LDFLAGS=
if [[ "$compiler" == "gcc" ]]; then cxxCompiler="g++"; fi
check_version_exists() {
desired_version=-1
# Set up the environment to be used for building with the desired compiler.
if command -v "$compiler-$1.$2" > /dev/null; then
desired_version="-$1.$2"
elif command -v "$compiler$1$2" > /dev/null; then
desired_version="$1$2"
elif command -v "$compiler-$1$2" > /dev/null; then
desired_version="-$1$2"
fi
echo "$desired_version"
}
if [[ -z "$CLR_CC" ]]; then
# Set default versions
if [[ -z "$majorVersion" ]]; then
# note: gcc (all versions) and clang versions higher than 6 do not have minor version in file name, if it is zero.
if [[ "$compiler" == "clang" ]]; then versions=( 13 12 11 10 9 8 7 6.0 5.0 4.0 3.9 3.8 3.7 3.6 3.5 )
elif [[ "$compiler" == "gcc" ]]; then versions=( 12 11 10 9 8 7 6 5 4.9 ); fi
for version in "${versions[@]}"; do
parts=(${version//./ })
desired_version="$(check_version_exists "${parts[0]}" "${parts[1]}")"
if [[ "$desired_version" != "-1" ]]; then majorVersion="${parts[0]}"; break; fi
done
if [[ -z "$majorVersion" ]]; then
if command -v "$compiler" > /dev/null; then
if [[ "$(uname)" != "Darwin" ]]; then
Write-PipelineTelemetryError -category "Build" -type "warning" "Specific version of $compiler not found, falling back to use the one in PATH."
fi
CC="$(command -v "$compiler")"
CXX="$(command -v "$cxxCompiler")"
else
Write-PipelineTelemetryError -category "Build" "No usable version of $compiler found."
exit 1
fi
else
if [[ "$compiler" == "clang" && "$majorVersion" -lt 5 ]]; then
if [[ "$build_arch" == "arm" || "$build_arch" == "armel" ]]; then
if command -v "$compiler" > /dev/null; then
Write-PipelineTelemetryError -category "Build" -type "warning" "Found clang version $majorVersion which is not supported on arm/armel architectures, falling back to use clang from PATH."
CC="$(command -v "$compiler")"
CXX="$(command -v "$cxxCompiler")"
else
Write-PipelineTelemetryError -category "Build" "Found clang version $majorVersion which is not supported on arm/armel architectures, and there is no clang in PATH."
exit 1
fi
fi
fi
fi
else
desired_version="$(check_version_exists "$majorVersion" "$minorVersion")"
if [[ "$desired_version" == "-1" ]]; then
Write-PipelineTelemetryError -category "Build" "Could not find specific version of $compiler: $majorVersion $minorVersion."
exit 1
fi
fi
if [[ -z "$CC" ]]; then
CC="$(command -v "$compiler$desired_version")"
CXX="$(command -v "$cxxCompiler$desired_version")"
if [[ -z "$CXX" ]]; then CXX="$(command -v "$cxxCompiler")"; fi
fi
else
if [[ ! -f "$CLR_CC" ]]; then
Write-PipelineTelemetryError -category "Build" "CLR_CC is set but path '$CLR_CC' does not exist"
exit 1
fi
CC="$CLR_CC"
CXX="$CLR_CXX"
fi
if [[ -z "$CC" ]]; then
Write-PipelineTelemetryError -category "Build" "Unable to find $compiler."
exit 1
fi
if [[ "$compiler" == "clang" ]]; then
if command -v "lld$desired_version" > /dev/null; then
# Only lld version >= 9 can be considered stable
if [[ "$majorVersion" -ge 9 ]]; then
LDFLAGS="-fuse-ld=lld"
fi
fi
fi
SCAN_BUILD_COMMAND="$(command -v "scan-build$desired_version")"
export CC CXX LDFLAGS SCAN_BUILD_COMMAND
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